THE AUDITORY MODELING TOOLBOX

Applies to version: 1.6.0

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sig_vanderheijden1999
Tone masked by delayed noise(s) with varying ITD

Usage:

stimulus = sig_vanderheijden1999(n_itd,s_sign,n_type,s_spl,fs,dur,rise_time,bw,fc,n_sspl)

Input parameters:

n_itd ITD (in s) of the masking noise component(s).
s_sign

Polarity of the amplitude of the tone's right channel:

  • Use s_sign of 1 to create an \(S_0\) target.
  • Use s_sign of -1 to create an \(S_\pi\) target.
n_type

Type of the noise:

  • 1 for a single-delayed noise.
  • 2 for two opposingly delayed noises (known as double-delayed noise).
s_spl SPL (in dB) of the tone.
fs Sampling rate (in Hz).
dur Duration of stimulus (in s).
rise_time Duration of the cosine ramp at start and end of signal (in s). Use rise_time of 0 to disable the windowing.
bw Overall bandwidth of stimulus (in Hz).
fc center frequency of inner band noise and the target tone (in Hz)
n_sspl Spectral SPL (in dB) of the noise.

Description:

sig_vanderheijden1999 creates a tone masked by either a single delayed noise or two opposingly delayed noises (known as double-delayed noise) with varying ITD. It is used for the experiment from van der Heijden and Trahiotis (1999) and for simulations of the Figure 3 from Eurich et al., (2022) done by eurich2022.

References:

M. van der Heijden and C. Trahiotis. Masking with interaurally delayed stimuli: The use of “internal” delays in binaural detection. The Journal of the Acoustical Society of America, 105(1):388--399, 01 1999. [ DOI ]

B. Eurich, J. Encke, S. D. Ewert, and M. Dietz. Lower interaural coherence in off-signal bands impairs binaural detection. The Journal of the Acoustical Society of America, 151(6):3927--3936, 06 2022. [ DOI ]

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